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Annual trends in species abundance in England.
An index of abundance for Scottish terrestrial breeding birds. This index is a combination of a number of species as recorded in the Breeding Bird Survey.
Trends of population indices for UK butterflies.
The aim of this study was to assess qualitative trends in the distribution and abundance of this species over a 9-year period
Trends of population indices for UK butterflies
Study presents the geographical distribution and abundance of viruses transmitted by the mosquitoes
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